It sounds like you have a firewall blocking communication between Dream Seeker and the pager. I'd check to make sure that all of the BYOND software is configured in as exceptions in your firewall as the pager's communication with Dream Seeker is imperative for authentication.

Well, it depends on what firewall you have running. You might have Windows firewall running, or you might have some other third party firewall. Configuring exceptions works differently depending on what you've got, so you'll need to figure that out first.